<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>hello html</title>
</head>
<body>
    <h1>一级标题</h1>
    <h2>二级标题</h2>
    <h3>三级标题</h3>
    <h4>四级标题</h4>
    <h5>五级标题</h5>
    <h6>六级标题</h6>
    <p>p标签</p>
    <span>span标签</span>
    <hr>
    aa
    <br>
    aa
    <br>
    <img src="../img/image.png" title="提示文本" alt="图片裂开了...">

    <a href="https://www.baidu.com" target="_blank"> 百度</a>
</body>
</html>